fix(blocks): render SubBlockConfig.tooltip in sub-block label

The tooltip field on SubBlockConfig was defined in blocks/types.ts but
never rendered. renderLabel in sub-block.tsx reads title and required
but ignored tooltip, so configs that set it (e.g. pi, textract) showed
no help text.

Render an Info icon with the tooltip text next to the field title,
reusing the Tooltip pattern already used in this file for the invalid
JSON warning.

Author: sanidhyasin

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/editor/components/sub-block/sub-block.tsx

@@ -7,6 +7,7 @@ import {
   Check,
   Clipboard,
   ExternalLink,
+  Info,
 } from 'lucide-react'
 import { useParams } from 'next/navigation'
 import { Button, Input, Label, Tooltip } from '@/components/emcn/components'
@@ -252,6 +253,18 @@ const renderLabel = (
       <Label className='flex items-baseline gap-1.5 whitespace-nowrap'>
         {config.title}
         {required && <span className='ml-0.5'>*</span>}
+        {config.tooltip && (
+          <Tooltip.Root>
+            <Tooltip.Trigger asChild>
+              <span className='inline-flex'>
+                <Info className='size-3 flex-shrink-0 cursor-pointer text-muted-foreground' />
+              </span>
+            </Tooltip.Trigger>
+            <Tooltip.Content side='top'>
+              <p>{config.tooltip}</p>
+            </Tooltip.Content>
+          </Tooltip.Root>
+        )}
         {labelSuffix}
         {config.type === 'code' &&
           config.language === 'json' &&